initial commit

2 files changed, 47 insertions, 0 deletions

diff --git a/makefile b/makefile
new file mode 100644
index 0000000..8b42a58
--- /dev/null
+++ b/makefile
@@ -0,0 +1,9 @@
+yes: yes.o
+	ld -m elf_x86_64 -o yes yes.o
+yes.o: yes.asm
+	nasm -f elf64 yes.asm
+clean:
+	rm *.o
+	rm yes
+run: yes
+	./yes
diff --git a/yes.asm b/yes.asm
new file mode 100644
index 0000000..6d61525
--- /dev/null
+++ b/yes.asm
@@ -0,0 +1,38 @@
+; Version	: 0.1
+; Last update	: 12/8/2020
+; Description	: Do you need ultimate yes peformance? Well, you've come to the right place.
+; Licence	: GPLv3
+; Note		: Assumes that the stack is at least 65536 bytes.
+
+section .data
+Yes:	db 0xA,'y',0xA,'y',0xA,'y',0xA,'y'	;8 bytes as the stack is written to 8 bytes at a time
+
+section .text
+	global _start
+
+_start:
+xor ecx,ecx	;0 out the counter registor
+
+ALIGN 16	;Align the stack to 16 bytes
+;; rsp is pointing to the "start" of the stack
+yees: inc ecx	;increment the counter every loop
+
+push qword[Yes]	;push 8 bytes to the stack
+
+test ecx,8192	;Check for 8192 loops
+je yees		;continue if amount is not reached
+
+;;the stack is now full of 32768 bytes of '\ny' (maybe a bit more, but that's ignored)
+yes: mov eax,1	;sys_write
+mov edi,1	;fd = STDOUT_FILENO
+mov edx,65536	;print 65536 bytes
+mov rsi,rsp	;the value of rsp is the start of where the text is
+syscall
+
+jmp yes		;print those 65536 bytes of 'y\n' forever
+
+;;this won't ever be reached but it's left for any future usage
+exit:
+mov eax, 60 ;sys_exit
+xor edi, edi ;return 0
+syscall ;do sys_exit